From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Wed, 14 Aug 2013 09:11:19 +0000 (+0200)
Subject: ASoC: tegra20-ac97: simplify use of devm_ioremap_resource
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=b4345006423d45622bc17198a598baefcea27c93;p=deliverable%2Flinux.git

ASoC: tegra20-ac97: simplify use of devm_ioremap_resource

Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@

- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  ... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
  ... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  e = devm_ioremap_resource(e1, res);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

diff --git a/sound/soc/tegra/tegra20_ac97.c b/sound/soc/tegra/tegra20_ac97.c
index 87b845f4cd1b..964cedf454d1 100644
--- a/sound/soc/tegra/tegra20_ac97.c
+++ b/sound/soc/tegra/tegra20_ac97.c
@@ -334,12 +334,6 @@ static int tegra20_ac97_platform_probe(struct platform_device *pdev)
 	}
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!mem) {
-		dev_err(&pdev->dev, "No memory resource\n");
-		ret = -ENODEV;
-		goto err_clk_put;
-	}
-
 	regs = devm_ioremap_resource(&pdev->dev, mem);
 	if (IS_ERR(regs)) {
 		ret = PTR_ERR(regs);